The imagery of the World Hymn indicates that it could have been formed during the Second Age. 
During the fall of Naptesh, presumably sometime in the Third Age judging by the imagery of the World Hymn, some of the Naptaan people fled to Tsuandan. Among them was Haskhunet, a Tomb Architect believed to have constructed the Terracotta Army. Tsuandan was at the time ruled by the Xun Dynasty. 
Around 405 A.S., Tsuandan was ruled by Emperor Haizu.
Many scholars place the coming of the current Emperor, Genglu, during the last century. 
Great Wall of Tsuandan Edit
Judging by the imagery of the World Hymn, the wall might have been built during the Sixth Age.
- ↑ 1.0 1.1 Map of the Lands and People of the 9th Age, by Meradus Gercator, 962 A.S. (Main Rulebook)
- ↑ 2.0 2.1 2.2 Johannes Strabo, A New Atlas for the Ninth Age (Main Rulebook)
- ↑ 3.0 3.1 3.2 Informative text about Tsuandan (The 9th Scroll, issue #8)
- ↑ The World Hymn, a reproduction of an Equitan tapestry, itself believed to be a copy of an ancient dwarven carving and poem dating from the first century AS. (Main Rulebook)
- ↑ Alberich Hauptmann (911 A.S.) Death Knows No Borders, chapter VI; Eichtal Press (Undying Dynasties armybook, p16)
- ↑ Transcript of proceedings in the Court of Tsuandan, approximately 405 A.S. (Warriors of the Dark Gods armybook, p22)
- ↑ Terimodus’ Wonders of the World (Main Rulebook)